This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 14 |
| 3 | 8567 |
| 4 | 16499 |
| 5 | 151211 |
| 6 | 344891 |
| 7 | 418831 |
| 8 | 585197 |
| 9 | 1049882 |
| 10 | 1186582 |
| 11 | 1671029 |
| 12 | 2503966 |
| 13 | 2989387 |
| 14 | 4802311 |
| 15 | 8291795 |
| 16 | 9769711 |
| 17 | 11420129 |
| 18 | 13279957 |
| 19 | 13677063 |
| 20 | 15356513 |
| 21 | 16258813 |
| 22 | 24318863 |
| 23 | 26874293 |
| 24 | 39317497 |
| 25 | 42862751 |